I have no formal training, nor do I have any real experience earning a living in any area of auto repair, except for managing a gas station in a National Park for one Summer, 48 years ago. I supported my family and myself for years and years as a lawyer and then a judge for Social Security, and retired about 6 months ago.
However, I have always wondered how things work. Cars, copying machines, toilets, the tides, religions, tax evasion, a pancreas, you name it. It’s all interesting to me, and I’ve been taking things apart and putting them together since I was about 10. So, over the years, being a cheapskate and a person who figured I could learn to do what other people learn to do, I have rebuilt, restored, fixed, broken, fixed again and generally messed with motor vehicles, and I still do it every day. To me the fun is figuring out what the problem is and then getting in there and straightening it out. Recently I’m much more interested in old motorcycles, because they are smaller and fit in my garage, and they are mechanical. Electronics just isn’t fun. Too much remove and replace, and I prefer fixing things that are broken.
I never did any of this stuff for money.